package com.servlet;

import java.io.File;
import java.io.IOException;
import java.io.PrintWriter;

import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.apache.commons.io.FileUtils;

import com.util.ReadWriteFileUtil;

public class ShowInfoServlet extends HttpServlet
{
    
    /**
     * serialVersionUID
     */
    private static final long serialVersionUID = 1L;

    /**
     * Constructor of the object.
     */
    public ShowInfoServlet()
    {
        super();
    }
    
    /**
     * Destruction of the servlet. <br>
     */
    public void destroy()
    {
        super.destroy(); // Just puts "destroy" string in log
        // Put your code here
    }
    
    /**
     * The doGet method of the servlet. <br>
     *
     * This method is called when a form has its tag value method equals to get.
     * 
     * @param request the request send by the client to the server
     * @param response the response send by the server to the client
     * @throws ServletException if an error occurred
     * @throws IOException if an error occurred
     */
    public void doGet(HttpServletRequest request, HttpServletResponse response)
        throws ServletException, IOException
    {
        
        doPost(request, response);
    }
    
    /**
     * The doPost method of the servlet. <br>
     *
     * This method is called when a form has its tag value method equals to post.
     * 
     * @param request the request send by the client to the server
     * @param response the response send by the server to the client
     * @throws ServletException if an error occurred
     * @throws IOException if an error occurred
     */
    public void doPost(HttpServletRequest request, HttpServletResponse response)
        throws ServletException, IOException
    {
        
        response.setContentType("text/html");
        PrintWriter out = response.getWriter();
        String file = request.getParameter("fileName");
        String fileName = ReadWriteFileUtil.getFilePath(file);
        String content = FileUtils.readFileToString(new File(fileName), "utf-8");
        System.out.println(content);
        out.println(content);
        out.flush();
        out.close();
    }
    
    /**
     * Initialization of the servlet. <br>
     *
     * @throws ServletException if an error occurs
     */
    public void init()
        throws ServletException
    {
        // Put your code here
    }
    
}
